What is blue raspberry? It’s not so much a thing found in nature as much as a frame of mind. It’s sweet and fruity, but with a coolness that’s hard to describe, but easy to love. Try a Blue Raspberry Extra Strength 5-hour ENERGY shot and you’ll understand what we mean. You’ll get the alert, energized feeling you need with an Extra Strength Blue Raspberry 5-hour ENERGY shot to get through your toughest day with zero sugar and four calories.